C#获取本地打印机列表，并将指定打印机设置为默认打印机

 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace Printers
{
    /// <summary>
    /// Interaction logic for Window1.xaml
    /// </summary>
    public partial class Window1 : Window
    {
        public Window1()
        {
            InitializeComponent();
            InitprinterComboBox(); //初始化打印机下拉列表选项
        }
        private void InitprinterComboBox()
        {
            List<String> list = LocalPrinter.GetLocalPrinters(); //获得系统中的打印机列表
            foreach (String s in list)
            {
                printerComboBox.Items.Add(s); //将打印机名称添加到下拉框中
            }
        }

        private void printButton_Click(object sender, RoutedEventArgs e)
        {
            if (printerComboBox.SelectedItem != null) //判断是否有选中值
            {
                if (Externs.SetDefaultPrinter(printerComboBox.SelectedItem.ToString())) //设置默认打印机
                {
                    MessageBox.Show(printerComboBox.SelectedItem.ToString() + "设置为默认打印机成功！");
                }
                else
                {
                    MessageBox.Show(printerComboBox.SelectedItem.ToString() + "设置为默认打印机失败！");
                }
            }
        }
    }
}

LocalPrinter.cs

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using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Drawing.Printing; using System.Runtime.InteropServices; namespace Printers { class LocalPrinter { private static PrintDocument fPrintDocument = new PrintDocument(); //获取本机默认打印机名称 public static String DefaultPrinter() { return fPrintDocument.PrinterSettings.PrinterName; } public static List<String> GetLocalPrinters() { List<String> fPrinters = new List<String>(); fPrinters.Add(DefaultPrinter()); //默认打印机始终出现在列表的第一项 foreach (String fPrinterName in PrinterSettings.InstalledPrinters) { if (!fPrinters.Contains(fPrinterName)) { fPrinters.Add(fPrinterName); } } return fPrinters; } } }

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Externs.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Runtime.InteropServices;

namespace Printers
{
    class Externs
    {
        [DllImport("winspool.drv")]
        public static extern bool SetDefaultPrinter(String Name); //调用win api将指定名称的打印机设置为默认打印机
    }
}